The impact of facies variability within the Harwich Formation on ground engineering in the London area, UK

The Eocene Harwich Formation, underlying the Greater London (UK) area, presents many construction problems for design and location of tunnels, pipelines other engineering infrastructure projects. Variable deposits make up sequence Formation. These include cemented fault zones, hard grounds, loose gravel sand that, when unexpectedly encountered, can cause delays increase costs. Here, we interpret borehole cores logs, in situ observations coupled with borehole-derived samples, calculate particle-size distributions to develop a general facies model that accounts lithological distribution within This provides an improved geological framework proposed subsurface reduce inherent uncertainties, not only region but potentially also similar environments.